Abstract: An air cleaning apparatus for deodorising or cleaning of air containing noxious or toxic odours is disclosed. The apparatus includes a controller that is a PLC, an air pump, a solenoid, a manifold, a pressure gauge, an air supply line and air supply lines in fluid communication with the manifold. It also includes a first tank that contains a deodorising solution, a second tank contains a detoxifying solution and the third tank contains an oxidising/disinfecting solution. These are the components that are delivered into the air to deodorise and/or clean the air. The apparatus further includes outlet conduits or lines which are in fluid communication with in line filters which as shown are in fluid communication with solenoids. The apparatus further includes supply flow conduits which are in flow communication with an evaporation assembly where a phase change of said decontamination solution occurs to convert it into an activated molecular species.